4390013 has 8 divisors (see below), whose sum is σ = 4587360. Its totient is φ = 4196880.

The previous prime is 4389997. The next prime is 4390021. The reversal of 4390013 is 3100934.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 4390013 - 2⁴ = 4389997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4390073) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1178 + ... + 3188.

It is an arithmetic number, because the mean of its divisors is an integer number (573420).

Almost surely, 2^4390013 is an apocalyptic number.

It is an amenable number.

4390013 is a deficient number, since it is larger than the sum of its proper divisors (197347).

4390013 is a wasteful number, since it uses less digits than its factorization.

4390013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2107.

The product of its (nonzero) digits is 324, while the sum is 20.

The square root of 4390013 is about 2095.2357862541. The cubic root of 4390013 is about 163.7401819959.

Adding to 4390013 its reverse (3100934), we get a palindrome (7490947).

The spelling of 4390013 in words is "four million, three hundred ninety thousand, thirteen".